Set up in an afternoon, on your own
Sign up, connect Google Calendar and publish a booking page without a sales call. The Free plan never expires.
Both qualify and route inbound leads. CalStack is self-serve, has a free plan, and bills monthly.
| CalStack | Chili Piper |
|---|---|
| Best for | |
| Teams that book qualified calls from their website and run them in Google Meet. | Revenue teams on Salesforce or HubSpot ready for a yearly contract. |
| Team price | |
| $47 a month billed yearly, up to 15 seats | $15,000 a year, 15 seats included |
| Stands out for | |
| Questions before the calendar, AI call prep, a Meet side panel | Routing on any Salesforce object, AI chat, deep CRM work |
CalStack and Chili Piper both qualify leads from their answers and book them with the right person. Chili Piper is an enterprise platform: it routes from your existing web forms and any Salesforce object, starts at $15,000 a year with 15 seats, and is sold through a demo. CalStack is self-serve, asks the questions in its own booking page, preps each call with AI inside Google Meet, and starts free, with paid plans billed monthly or yearly.
| Feature | CalStack | Chili Piper |
|---|---|---|
| Booking and qualifying | ||
| Booking page with its own link | Yes | PaidScheduling links for every rep |
| Qualifying questions before the calendarLeads answer your questions first, then pick a time. | Yes | PaidFrom your own web forms |
| Send leads to the right place based on their answersTo a host or team, a message, or another page. | PaidTeam plan | PaidRouting & Scheduling |
| Team scheduling | ||
| Round-robin across a teamSpread meetings evenly, or fill the most open slots. | PaidTeam plan | PaidRouting & Scheduling |
| Calendars and video | ||
| Google Calendar | Yes | PaidAll plans |
| Outlook and Microsoft 365 calendars | No | PaidAll plans |
| Before, during and after the call | ||
| AI call prep for every bookingTalking points from the lead's answers, ready before the call. | YesUses AI credits | PaidMeeting Prep agent |
| Automations and integrations | ||
| Webhooks | Yes | PaidWebhook triggers |
| Slack notifications | Yes | PaidAlso Microsoft Teams |
| Built-in CRM sync | NoThrough Zapier, n8n or webhooks | PaidSalesforce and HubSpot |
| Analytics | ||
| Booking and team analytics | Yes | PaidRouting & Scheduling |
| Plans | ||
| Free plan | Yes3 booking pages, 1 seat | NoDemo only, no trial listed |
| How seats are priced | Flat: up to 15 seats on Team | Yearly platform fee, 15 seats included |
CalStack charges one price per workspace with the seats included. Chili Piper sells a yearly platform that includes 15 seats, with each extra seat on top. Pick a team size to compare list prices.
CalStack
$47a month
Team plan, flat, up to 15 seats
Chili Piper
$1,250a month
Routing & Scheduling, $1,250 with 15 seats, billed yearly
List prices in US dollars from each vendor’s pricing page, checked October 2026. CalStack also has a free plan for one person; Chili Piper doesn’t. Chili Piper bills yearly only, so its monthly figure is the yearly price per month.
Sign up, connect Google Calendar and publish a booking page without a sales call. The Free plan never expires.
The Team plan covers up to 15 seats for one monthly price, so adding a teammate doesn't change the bill.
A side panel in Google Meet shows the lead's answers and your AI talking points. Tag the outcome and take notes without leaving the call.
Every booking page starts with your qualifying questions, on the Free plan too. CalStack can draft them from a short description of who you want to meet.
Each host connects their own Google Calendar. CalStack checks it for conflicts and adds a Meet link to every booking.
Add your form's qualifying questions to a booking page, then set a rule for each answer: a host, a team, a message or another page.
Add the floating widget to your site, and send new bookings to your CRM through Zapier, n8n or a webhook.
CalStack’s column comes from the product as it works today. Every Chili Piper fact comes from Chili Piper’s own site, checked October 2026. Prices are list prices in US dollars and change over time. If something here is out of date, tell us.
Chili Piper is a trademark of its owner. CalStack is not affiliated with Chili Piper.
CalStack vs Calendly
Individuals and teams who want a widely known scheduling link that works with any calendar and video tool.
CalStack vs Cal.com
Teams that want a broad scheduling platform with a generous free plan and enterprise controls.
CalStack vs HubSpot Meetings
Teams that already run their sales in HubSpot and want meetings logged in the CRM.
CalStack vs SavvyCal
People who send scheduling links by hand and want the booking experience to feel personal.
CalStack vs Acuity Scheduling
Service businesses that sell appointments, classes and packages and take payment at booking.
CalStack vs RevenueHero
B2B teams that route leads from their existing forms using CRM data, and pay only for reps who get meetings.
All comparisons
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